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Confirming structure of aspartic acid at PH 4

  1. Feb 7, 2014 #1
    1. The problem statement, all variables and given/known data
    Draw the structure of aspartic acid at PH 4. I calculated the PI and based on that, drew the
    charged structure. If anyone can confirm that this is the correct structure.



    2. Relevant equations



    3. The attempt at a solution
    I attached the structure. Thanks for any assistance.
     

    Attached Files:

  2. jcsd
  3. Feb 8, 2014 #2

    Borek

    User Avatar

    Staff: Mentor

    At pH 4 solution contains about 62% of -1 form, and around 37% of neutral form. But I doubt -1 form is the one you have drawn, I don't think proton is on the amine group.
     
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